| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilation member suitable for preventing cracking of an inner peripheral face of a root part of an inserting portion.SOLUTION: A supporting body 4 has a base portion 11 and a plurality of leg portions 12. The leg portions 12 have inserting portions 31 divided into a plurality of parts along the circumferential direction by slits 32 at their insertion starting side, elastically deformed to an inner peripheral side, and inserted and fixed to an opening portion 21, and a retracting portion 33. The retracting portion 33 retracts to an opposite side of the slits 32 from a virtual circumferential direction end face Q virtually formed so that a part between an end portion of an inner peripheral face 31C of a root part 31A of the inserting portion 31 and an end portion of an outer peripheral face 31E, includes a first reference line P in parallel with a central shaft O and passing through the end portion of the outer peripheral face 31, and the central shaft O, and further retracts to an outer peripheral side from a virtual inner peripheral face R formed by virtually extending the end portion of the inner peripheral face 31C to a slit 32 side in the circumferential direction. |
